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Note 9 - Net (Loss) Income Per Common Share - Reconciliation of the Earnings Per Share Computations (Details) - USD ($)	12 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Net (loss) income attributable to NTIC	$ (1,337,709)	$ 5,209,622
Basic-weighted shares outstanding (in shares)	9,096,981	9,085,584
Weighted shares assumed upon exercise of stock options (in shares)		330,390
Diluted – weighted shares outstanding (in shares)	9,096,981	9,415,974
Basic net (loss) income per share: (in dollars per share)	$ (0.15)	$ 0.57
Diluted net (loss) income per share: (in dollars per share)	$ (0.15)	$ 0.55

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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